Philips Respironics has become aware of a potential safety issue with Trilogy EVO and Trilogy EV300 devices where the ventilator can issue a battery depleted or loss of power alarm while sufficient power is still available. This can result in a sudden loss of ventilation while the device alarms. A software algorithm that calculates remaining battery life can malfunction and cause the device to either: 1. Issue a loss of power alarm that stops CPAP or PSV therapy while operating on battery power alone. 2. Issue a battery depleted alarm while continuing therapy if plugged into a permanent power source. Recall start date: March 4, 2024
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